refactor to reduce db hits and fix *team

core/admin.py

@@ -19,6 +19,8 @@ In particular, it enables JSON export of any data with 'export_as_json'
 and configures the search fields to be used within the control panel.
 
 What is the search path for the css and js inclusions  in the Media subclasses though ?!
+
+The page looks for /static/jquery/jquery.min.js
 '''
 
 class TroggleModelAdmin(admin.ModelAdmin):

core/models/survex.py

@@ -152,7 +152,7 @@ class SurvexPersonRole(models.Model):
     personname          = models.CharField(max_length=100)
     person              = models.ForeignKey('Person', blank=True, null=True,on_delete=models.SET_NULL)
     personexpedition    = models.ForeignKey('PersonExpedition', blank=True, null=True,on_delete=models.SET_NULL)
-    persontrip          = models.ForeignKey('PersonTrip', blank=True, null=True,on_delete=models.SET_NULL)   # logbook
+    # persontrip          = models.ForeignKey('PersonTrip', blank=True, null=True,on_delete=models.SET_NULL)   # logbook thing not a survex thing
     expeditionday       = models.ForeignKey("ExpeditionDay", null=True,on_delete=models.SET_NULL)
     
     def __str__(self):